Click to zoom in
Customer Images:
No Images yet! Submit a product image below!
Speaker - Celestion, 12", T.F. Series 1225E, 300W, 8Ω
T.F. Series 1225E is a high powered 12" speaker suitable for many PA applications and in 2-way and compact 3-way systems. This bass and mid range driver has an extended low frequency response and features an edge wound voice coil for high efficiency and power handling.
RoHS Compliant
| Chassis Type | Pressed steel | |
| Coil Material | Edge-wound copper | |
| Cone Material | Kevlar-loaded paper | |
| Cut-out Diameter | 283 mm | |
| D | 260 mm | |
| Diameter | 12 in. | |
| Diaphragm/Coil Mass (Mmd) | 46.31 g | |
| Electrical Q Factor (Qes) | 0.44 | |
| Equivalent Acoustic Volume (VAS) | 50.6 liters | |
| Force Factor (BxL) | 15.41 Wb/m | |
| Former Material | Polyimide | |
| Frequency Range | 50 Hz - 3,000 Hz | |
| Gap Depth | 8 mm | |
| Magnet Type | Ferrite | |
| Magnet Weight | 50 oz. | |
| Maximum Linear Displacement (XMAX) | 3.5 mm | |
| Mechanical Compliance (CMS) | 0.13 mm/N | |
| Mechanical Moving Mass (MMS) | 53.24 g | |
| Mechanical Q Factor (QMS) | 4.80 | |
| Mechanical Resistance of Driver (Rms) | 4.27 kg/s | |
| Mounting Hole Bolt Circle Diameter | 297 mm | |
| Mounting Hole Diameter | 7.9 mm | |
| Mounting Slots | 4 | |
| Nominal Diameter | 12 in. | |
| Nominal Impedance | 8 Ω | |
| Overall Depth | 139 mm | |
| Overall Diameter | 309 mm | |
| Power Rating | 300 Wrms | |
| Resonance Frequency (ƒS) | 61.2 Hz | |
| Sensitivity | 96 dB | |
| Surround Material | Cloth-sealed | |
| Suspension | Single | |
| Total Q Factor (QTS) | 0.40 | |
| Voice Coil DC Resistance (Re) | 5.07Ω | |
| Voice Coil Diameter | 2.5 in. | |
| Voice Coil Inductance @ 1 kHZ (LE) | 1.1 mH | |
| Voice Coil Winding Width | 14.5 mm |
| Packaging Dimensions | 12.875 in. × 13.375 in. × 6.25 in. | |
| Weight (Packaging) | 11 lbs. |
 Specification Sheet | All Models |
My Project Lists
Specifications, Files, and Documents
Questions and Answers
Click each question to see its answers.
1 answers
Would this speaker work well as an 8 ohm stand-alone one 12" bass cabinet? The head powering it would be 550 watts at 4 ohms.
Asked by Anonymous on June 13th, 2018.
June 13th, 2018
Staff Member
We advise doubling the wattage of the amp with the speaker. For your amp that would be around 1100W. A 600W speaker technically has enough power for the amp, it is much more likely to be damaged when playing at higher volumes. Subsequently, the Ohm rating of the speaker is 8 Ohms while the amp's rated at 4 Ohms. It is safe to install an 8 Ohm speaker your amp as you can safely go over in Ohm ratings, just not under.
Related Products
Product Reviews